/* 我的珍藏相册 — Tech/utility（OpenDesign Step 1: browse/upload） */

:root {
  /* OpenDesign OKLCH tokens — rgb/hex first for older Safari */
  --bg: #f7f8fa;
  --bg: oklch(98% 0.005 250);
  --surface: #fafafa;
  --surface: oklch(98% 0 0);
  --surface-raised: #ffffff;
  --surface-raised: oklch(100% 0 0);
  --surface-sunken: #f0f1f3;
  --surface-sunken: oklch(96% 0 0);

  --fg: #2a2e33;
  --fg: oklch(22% 0.02 240);
  --ink-primary: var(--fg);
  --ink-secondary: #5c6168;
  --ink-secondary: oklch(45% 0.02 240);
  --ink-muted: #8a9099;
  --ink-muted: oklch(65% 0.01 240);

  --muted: var(--ink-muted);

  --accent: #6b9e82;
  --accent: oklch(58% 0.16 145);
  --accent-hover: #5a8f72;
  --accent-hover: oklch(52% 0.18 145);
  --accent-muted: #c8e0d4;
  --accent-muted: oklch(80% 0.08 145);

  --border: #dde0e4;
  --border: oklch(88% 0.01 240);
  --border-strong: #c4c9cf;
  --border-strong: oklch(78% 0.02 240);

  --error: #c45a4a;
  --error: oklch(60% 0.18 20);
  --success: #5a9e5a;
  --success: oklch(65% 0.15 130);

  --font-display: -apple-system, BlinkMacSystemFont, 'Inter', 'Segoe UI', system-ui, sans-serif;
  --font-body: var(--font-display);
  --font-mono: 'JetBrains Mono', 'IBM Plex Mono', ui-monospace, Menlo, monospace;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-card: 6px;

  --sp-1: 0.25rem;
  --sp-2: 0.5rem;
  --sp-4: 1rem;
  --sp-6: 1.5rem;
  --sp-8: 2rem;

  /* Legacy aliases — login/detail/manage still reference these */
  --paper: var(--surface);
  --paper-deep: var(--surface-sunken);
  --ink: var(--ink-primary);
  --ink-soft: var(--ink-secondary);
  --line: var(--border);

  --serif: "Georgia", "Times New Roman", "Noto Serif SC", "Source Han Serif SC", serif;
  --sans: var(--font-body);
  --max: 52rem;
  --wide: 75rem;
  --ease: cubic-bezier(0.25, 0.1, 0.25, 1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--sans);
  color: var(--ink);
  background:
    radial-gradient(ellipse at 20% 0%, rgba(255, 255, 255, 0.55), transparent 55%),
    radial-gradient(ellipse at 80% 100%, rgba(210, 200, 185, 0.25), transparent 50%),
    linear-gradient(180deg, #faf7f2 0%, var(--paper) 40%, var(--paper-deep) 100%);
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

button,
input {
  font: inherit;
}

/* ---- Shell ---- */

.app-shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(10px);
  background: color-mix(in oklch, var(--surface) 85%, transparent);
  border-bottom: 1px solid var(--border);
}

@supports not (background: color-mix(in oklch, white 85%, transparent)) {
  .site-header {
    background: rgba(255, 255, 255, 0.88);
  }
}

.site-header__inner {
  max-width: var(--wide);
  margin: 0 auto;
  padding: 1rem 1.25rem;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
}

.site-title {
  margin: 0;
  font-family: var(--serif);
  font-size: 1.05rem;
  font-weight: 400;
  letter-spacing: 0.12em;
}

.site-title a:hover {
  opacity: 0.72;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  font-size: 0.82rem;
  color: var(--ink-muted);
}

.site-nav a:hover,
.site-nav button:hover {
  color: var(--ink-primary);
}

.site-nav__cta {
  display: inline-flex;
  align-items: center;
  padding: var(--sp-1) var(--sp-2);
  border-radius: var(--radius-sm);
  background: var(--accent);
  color: var(--surface-raised) !important;
  font-weight: 600;
  transition: background-color 0.2s var(--ease);
}

.site-nav__cta:hover {
  background: var(--accent-hover);
  color: var(--surface-raised) !important;
}

.nav-placeholder {
  cursor: default;
  opacity: 0.65;
}

.nav-logout {
  border: none;
  background: none;
  padding: 0;
  cursor: pointer;
  color: inherit;
  font-size: inherit;
}

.site-main {
  flex: 1;
  width: 100%;
  max-width: var(--wide);
  margin: 0 auto;
  padding: 2rem 1.25rem 4rem;
}

/* ---- Login ---- */

.login-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 2rem 1.25rem;
  background:
    radial-gradient(ellipse at 50% 0%, rgba(107, 158, 130, 0.12), transparent 55%),
    radial-gradient(ellipse at 20% 100%, rgba(200, 224, 212, 0.35), transparent 50%),
    linear-gradient(180deg, #f8faf9 0%, var(--paper) 45%, var(--paper-deep) 100%);
}

.login-card {
  width: 100%;
  max-width: 22rem;
  padding: 2.5rem 2rem;
  background: rgba(255, 252, 247, 0.95);
  border: 1px solid var(--line);
  border-top: 3px solid var(--accent);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.8) inset,
    0 8px 24px rgba(107, 158, 130, 0.08);
}

.login-card__brand {
  margin: 0 0 0.35rem;
  font-family: var(--serif);
  font-size: 1.35rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-align: center;
  color: var(--ink-primary);
}

.login-card__hint {
  margin: 0 0 2rem;
  font-size: 0.85rem;
  color: var(--accent-hover);
  text-align: center;
}

.login-form label {
  display: block;
  margin-bottom: 1rem;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
}

.login-form input {
  width: 100%;
  margin-top: 0.35rem;
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  border-radius: var(--radius-sm);
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.login-form input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-muted);
}

.login-form input[readonly] {
  background: var(--paper);
  color: var(--ink-muted);
}

.login-form button[type="submit"] {
  width: 100%;
  margin-top: 0.5rem;
  padding: 0.75rem;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: #fff;
  cursor: pointer;
  letter-spacing: 0.08em;
  border-radius: var(--radius-sm);
  transition: background 0.2s var(--ease), border-color 0.2s var(--ease);
}

.login-form button[type="submit"]:hover:not(:disabled) {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
}

.login-form button[type="submit"]:disabled {
  opacity: 0.55;
  cursor: wait;
}

.login-error {
  margin: 0 0 1rem;
  padding: 0.65rem 0.75rem;
  font-size: 0.85rem;
  color: #6b3a32;
  background: rgba(180, 120, 100, 0.08);
  border-left: 2px solid rgba(140, 80, 60, 0.35);
}

/* ---- Timeline ---- */

.timeline-intro {
  max-width: var(--max);
  margin: 0 auto 3rem;
  text-align: center;
}

.timeline-intro p {
  margin: 0;
  font-family: var(--serif);
  font-size: 0.95rem;
  color: var(--ink-muted);
  letter-spacing: 0.04em;
}

.chapter {
  max-width: var(--max);
  margin: 0 auto 4.5rem;
}

.chapter__head {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: 1.75rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--line);
}

.chapter__year {
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  color: var(--ink-muted);
}

.chapter__month {
  margin: 0;
  font-family: var(--serif);
  font-size: 1.65rem;
  font-weight: 400;
  letter-spacing: 0.06em;
}

.chapter__flow {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.moment {
  display: block;
  color: inherit;
  transition: opacity 0.25s var(--ease);
}

.moment:hover {
  opacity: 0.92;
}

.moment__frame {
  overflow: hidden;
  background: var(--paper-deep);
  line-height: 0;
}

.moment__frame img {
  display: block;
  margin: 0 auto;
}

/* landscape — 通栏，限高 */
.moment--landscape .moment__frame img {
  width: 100%;
  max-height: 65vh;
  object-fit: cover;
}

/* portrait — 完整显示 */
.moment--portrait .moment__frame img {
  width: 100%;
  max-height: 72vh;
  object-fit: contain;
  background: #ebe6de;
}

/* square — 限宽居中，避免 1×1 拉成长条 */
.moment--square .moment__frame {
  max-width: min(22rem, 100%);
  margin: 0 auto;
}

.moment--square .moment__frame img {
  width: 100%;
  max-height: min(22rem, 60vh);
  object-fit: contain;
  background: #ebe6de;
}

/* panorama — 宽幅限高 */
.moment--panorama .moment__frame img {
  width: 100%;
  max-height: 40vh;
  object-fit: cover;
}

/* unknown — 缺尺寸，纸色比例占位 */
.moment--unknown .moment__frame {
  aspect-ratio: 4 / 3;
  max-width: min(32rem, 100%);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
}

.moment--unknown .moment__frame img {
  width: 100%;
  height: 100%;
  max-height: 100%;
  object-fit: contain;
}

.moment__frame.has-fallback,
.detail-hero.has-fallback {
  aspect-ratio: 4 / 3;
  max-height: 72vh;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: normal;
}

.photo-fallback {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 10rem;
  padding: 2rem 1rem;
  background: var(--paper-deep);
}

.photo-fallback__text {
  margin: 0;
  font-family: var(--serif);
  font-size: 0.9rem;
  color: var(--ink-muted);
  letter-spacing: 0.06em;
  text-align: center;
}

.moment__caption {
  margin-top: 0.85rem;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.5rem 1rem;
}

.moment__title {
  font-family: var(--serif);
  font-size: 1.05rem;
  font-weight: 400;
}

.moment__date {
  font-size: 0.78rem;
  color: var(--ink-muted);
  letter-spacing: 0.04em;
}

.timeline-empty {
  max-width: var(--max);
  margin: 4rem auto;
  text-align: center;
  font-family: var(--serif);
  color: var(--ink-muted);
}

.timeline-loading,
.detail-loading {
  text-align: center;
  padding: 4rem 1rem;
  color: var(--ink-muted);
  font-size: 0.9rem;
  letter-spacing: 0.06em;
}

.load-more {
  display: block;
  width: fit-content;
  margin: 2rem auto 0;
  padding: 0.55rem 1.25rem;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--ink-soft);
  cursor: pointer;
  font-size: 0.82rem;
  letter-spacing: 0.06em;
}

.load-more:hover {
  border-color: var(--ink-muted);
}

.load-more:disabled {
  opacity: 0.5;
  cursor: wait;
}

/* ---- Detail ---- */

.detail-back {
  display: inline-block;
  margin-bottom: 1.75rem;
  font-size: 0.82rem;
  color: var(--ink-muted);
  letter-spacing: 0.04em;
}

.detail-back:hover {
  color: var(--ink);
}

.detail-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-2);
  margin: 1rem 0 0;
  padding: 0.55rem 0.15rem;
  background: transparent;
  border: none;
  border-top: 1px solid var(--border);
}

.detail-article {
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.detail-upper {
  display: grid;
  gap: 1.5rem;
  align-items: start;
}

.detail-media {
  min-width: 0;
}

.detail-side {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.detail-hero {
  background: var(--paper-deep);
  line-height: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  width: 100%;
}

.detail-hero img {
  display: block;
  margin: 0 auto;
  width: auto;
  max-width: 100%;
  height: auto;
  object-fit: contain;
}

.detail-hero--landscape img,
.detail-hero--portrait img,
.detail-hero--square img {
  width: 100%;
  max-height: min(78vh, 44rem);
}

.detail-hero--panorama img {
  width: 100%;
  max-height: min(48vh, 26rem);
  object-fit: cover;
}

.detail-hero--unknown {
  aspect-ratio: 4 / 3;
  display: flex;
  align-items: center;
  justify-content: center;
}

.detail-hero--unknown img {
  width: 100%;
  height: 100%;
  max-height: 100%;
}

.detail-meta {
  max-width: none;
}

.detail-meta__list {
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.detail-meta__item {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.55;
}

.detail-meta__label {
  color: var(--ink-muted);
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
}

.detail-meta__sep {
  color: var(--ink-muted);
  margin-right: 0.2rem;
}

.detail-meta__value {
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 500;
  word-break: break-word;
}

.detail-meta__value--title {
  font-weight: 600;
  word-break: break-all;
}

.detail-meta__row--note {
  margin-top: 0.75rem;
  padding-top: 0.85rem;
  border-top: 1px solid var(--border);
}

.detail-nav__btn {
  flex: 0 0 auto;
  padding: 0.2rem 0.35rem;
  font-size: 0.72rem;
  letter-spacing: 0.02em;
  color: var(--accent-hover);
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  transition: color 0.2s var(--ease), background 0.2s var(--ease);
}

.detail-nav__btn:hover {
  background: var(--accent-muted);
  color: var(--accent-hover);
}

.detail-nav__btn--disabled {
  opacity: 0.32;
  pointer-events: none;
  color: var(--ink-muted);
}

.detail-nav__meta {
  flex: 1 1 auto;
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  min-width: 0;
  text-align: center;
}

.detail-nav__pos {
  font-size: 0.72rem;
  font-variant-numeric: tabular-nums;
  color: var(--ink-muted);
  letter-spacing: 0.03em;
}

.detail-nav__topic {
  font-size: 0.72rem;
  color: var(--ink-muted);
  letter-spacing: 0.02em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 8rem;
}

.detail-nav__topic::before {
  content: "·";
  margin-right: 0.4rem;
  opacity: 0.5;
}

@media (min-width: 768px) {
  .detail-upper {
    grid-template-columns: minmax(0, 1.65fr) minmax(16rem, 20rem);
    gap: 2rem;
    align-items: stretch;
  }

  .detail-upper--landscape {
    grid-template-columns: minmax(0, 1.5fr) minmax(16rem, 20rem);
  }

  .detail-upper--panorama {
    grid-template-columns: minmax(0, 1.75fr) minmax(16rem, 20rem);
  }

  .detail-side {
    min-height: 0;
    max-height: min(78vh, 44rem);
  }

  .detail-topic-context {
    flex: 1 1 auto;
    min-height: 0;
    display: flex;
    flex-direction: column;
  }
}

.detail-topic-context {
  padding: 1rem 1.1rem;
  background: var(--surface-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}

.detail-topic-context__label {
  margin: 0 0 0.35rem;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--ink-muted);
  flex: 0 0 auto;
}

.detail-topic-context__name {
  margin: 0 0 0.65rem;
  font-family: var(--serif);
  font-size: 1.1rem;
  font-weight: 400;
  letter-spacing: 0.03em;
  flex: 0 0 auto;
}

.detail-topic-context__desc-scroll {
  flex: 1 1 auto;
  min-height: 0;
  max-height: 10rem;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding-right: 0.25rem;
}

@media (min-width: 768px) {
  .detail-topic-context__desc-scroll {
    max-height: none;
  }
}

.detail-topic-context__desc {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.65;
  color: var(--ink-soft);
}

.detail-topic-context__desc--muted {
  color: var(--ink-muted);
  font-size: 0.85rem;
}

.detail-meta__desc {
  margin: 0;
  font-size: 0.9rem;
  color: var(--ink-soft);
  line-height: 1.65;
}

.detail-bottom-bar {
  margin-top: 1.75rem;
  margin-left: -1.25rem;
  margin-right: -1.25rem;
  padding: 1rem 1.25rem 1.15rem;
  background: var(--surface-sunken);
  border-top: 1px solid var(--border);
}

.detail-bottom-bar__inner {
  max-width: var(--wide);
  margin: 0 auto;
}

.detail-bottom-bar__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.75rem;
  margin-bottom: 0.65rem;
}

.detail-bottom-bar__label {
  margin: 0;
  font-family: var(--serif);
  font-size: 0.95rem;
  font-weight: 400;
  letter-spacing: 0.04em;
}

.detail-bottom-bar__manage {
  margin-left: auto;
  padding: 0.25rem 0.55rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface-raised);
  color: var(--ink-soft);
  font-size: 0.72rem;
  cursor: pointer;
}

.detail-bottom-bar .topic-chip-editor__list {
  max-height: 5rem;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding-right: 0.25rem;
}

.detail-bottom-bar .topic-chip-editor__hint {
  margin-top: 0.55rem;
}

.detail-error {
  max-width: var(--max);
  margin: 3rem auto;
  text-align: center;
  color: var(--ink-muted);
  font-family: var(--serif);
}

/* ---- Utilities ---- */

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (min-width: 640px) {
  .site-header__inner {
    padding: 1.1rem 2rem;
  }

  .site-main {
    padding: 2.5rem 2rem 5rem;
  }

  .detail-bottom-bar {
    margin-left: -2rem;
    margin-right: -2rem;
    padding-left: 2rem;
    padding-right: 2rem;
  }

  .chapter__month {
    font-size: 1.85rem;
  }

  .manage-main {
    padding: 2rem 2rem 4rem;
  }

  .manage-row {
    grid-template-columns: 5rem 1fr;
  }

  .manage-row__thumb {
    width: 5rem;
    height: 5rem;
  }
}

/* ---- Manage ---- */

.manage-shell {
  background: var(--paper);
}

.site-header--manage {
  background: rgba(247, 244, 239, 0.95);
}

.site-title--manage {
  letter-spacing: 0.08em;
}

.manage-main {
  max-width: 42rem;
  padding: 1.75rem 1.25rem 3.5rem;
}

.manage-section-title {
  margin: 0 0 1rem;
  font-family: var(--serif);
  font-size: 1rem;
  font-weight: 400;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
}

.manage-upload {
  margin-bottom: 2.5rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--line);
}

.manage-upload-form {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.manage-upload-form label {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-size: 0.82rem;
  color: var(--ink-soft);
}

.manage-upload-form input[type="text"],
.manage-upload-form input[type="file"],
.manage-edit input,
.manage-edit textarea {
  padding: 0.5rem 0.65rem;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.45);
  color: var(--ink);
  border-radius: 2px;
}

.manage-upload-form button[type="submit"],
.manage-edit button[type="submit"] {
  align-self: flex-start;
  margin-top: 0.25rem;
  padding: 0.55rem 1.25rem;
  border: 1px solid var(--ink-muted);
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  font-size: 0.82rem;
  letter-spacing: 0.04em;
}

.manage-upload-form button[type="submit"]:disabled {
  opacity: 0.5;
  cursor: wait;
}

.manage-upload-file input[type="file"] {
  font-size: 0.82rem;
}

.manage-msg {
  margin: 0.75rem 0 0;
  font-size: 0.82rem;
}

.manage-msg--ok {
  color: var(--ink-soft);
}

.manage-msg--error {
  color: #8b4513;
}

.manage-list-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem 1rem;
  margin-bottom: 1rem;
}

.manage-filters {
  display: flex;
  gap: 0.35rem;
}

.manage-filter {
  padding: 0.3rem 0.65rem;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--ink-muted);
  cursor: pointer;
  font-size: 0.75rem;
  letter-spacing: 0.04em;
}

.manage-filter.is-active {
  border-color: var(--ink-muted);
  color: var(--ink);
}

.manage-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  border-top: 1px solid var(--line);
}

.manage-row {
  display: grid;
  grid-template-columns: 4rem 1fr;
  gap: 0.85rem;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--line);
}

.manage-row__thumb {
  width: 4rem;
  height: 4rem;
  background: var(--paper-deep);
  overflow: hidden;
  line-height: 0;
}

.manage-row__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.manage-row__thumb .photo-fallback--thumb {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.25rem;
}

.manage-row__thumb .photo-fallback__text {
  margin: 0;
  font-size: 0.55rem;
  line-height: 1.3;
  text-align: center;
  color: var(--ink-muted);
}

.manage-row__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.35rem 0.65rem;
  margin-bottom: 0.45rem;
}

.manage-row__title {
  font-family: var(--serif);
  font-size: 0.92rem;
  letter-spacing: 0.02em;
}

.manage-row__date {
  font-size: 0.75rem;
  color: var(--ink-muted);
}

.manage-row__badge {
  font-size: 0.68rem;
  color: var(--ink-muted);
  letter-spacing: 0.04em;
}

.manage-row__badge--source {
  padding: 0.1rem 0.35rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}

.manage-row__badge--source-web {
  color: var(--accent-hover);
  border-color: var(--accent-muted);
  background: rgba(107, 158, 130, 0.08);
}

.manage-row__badge--source-telegram {
  color: #4a7fc1;
  border-color: rgba(74, 127, 193, 0.35);
  background: rgba(74, 127, 193, 0.08);
}

.manage-row__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.manage-btn {
  padding: 0.25rem 0.55rem;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--ink-soft);
  cursor: pointer;
  font-size: 0.75rem;
}

.manage-btn:hover {
  border-color: var(--ink-muted);
  color: var(--ink);
}

.manage-btn--quiet {
  color: var(--ink-muted);
}

.manage-edit {
  margin-top: 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.manage-edit label {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  font-size: 0.78rem;
  color: var(--ink-soft);
}

.manage-edit textarea {
  resize: vertical;
  min-height: 2.5rem;
}

.manage-edit__actions {
  display: flex;
  gap: 0.5rem;
}

.manage-edit__actions button[type="button"] {
  padding: 0.45rem 0.85rem;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--ink-muted);
  cursor: pointer;
  font-size: 0.78rem;
}

.manage-loading,
.manage-empty {
  padding: 2rem 0;
  text-align: center;
  font-size: 0.85rem;
  color: var(--ink-muted);
}

.manage-upload-hint {
  margin: 0 0 0.85rem;
  font-size: 0.82rem;
  color: var(--ink-soft);
}

.manage-upload-hint a {
  text-decoration: underline;
  text-underline-offset: 0.15em;
}

/* ---- Browse (topics) — OpenDesign Tech/utility ---- */

.browse-shell,
.upload-shell {
  background: var(--bg);
}

.browse-shell .site-header {
  border-bottom: 1px solid var(--border);
}

.topic-nav {
  display: flex;
  gap: var(--sp-2);
  padding: var(--sp-2) var(--sp-4);
  overflow-x: auto;
  white-space: nowrap;
  -webkit-overflow-scrolling: touch;
  background: var(--surface-raised);
  border-bottom: 1px solid var(--border);
  scrollbar-width: none;
}

.topic-nav::-webkit-scrollbar {
  display: none;
}

.topic-nav__btn,
.topic-nav__add {
  flex-shrink: 0;
  padding: var(--sp-2) var(--sp-4);
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--muted);
  font-family: var(--font-body);
  font-size: 0.95rem;
  cursor: pointer;
  text-decoration: none;
  transition: background-color 0.2s var(--ease), color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.topic-nav__btn:hover:not(.is-active),
.topic-nav__add:hover {
  background: var(--accent-muted);
  color: var(--fg);
}

.topic-nav__btn.is-active {
  background: var(--accent);
  color: var(--surface-raised);
  border-color: var(--accent);
  font-weight: 600;
}

.topic-nav__count {
  margin-left: var(--sp-1);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-variant-numeric: tabular-nums;
  opacity: 0.85;
}

.topic-nav__add {
  border: 1px dashed var(--border);
  color: var(--accent);
}

.topic-nav__add:hover {
  border-color: var(--accent);
}

.browse-main {
  max-width: var(--wide);
  margin: 0 auto;
  width: 100%;
  padding: var(--sp-6);
}

.browse-loading,
.browse-empty,
.browse-empty-state {
  padding: var(--sp-8) var(--sp-4);
  text-align: center;
  color: var(--muted);
  font-size: 0.95rem;
}

.browse-empty-state a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 0.15em;
}

.topic-group {
  margin-bottom: var(--sp-8);
}

.topic-group__head {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  margin-bottom: var(--sp-4);
}

.topic-group__head--clickable {
  margin-bottom: var(--sp-3);
}

.topic-group__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--fg);
}

button.topic-group__title--link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0;
  border: none;
  background: none;
  cursor: pointer;
  text-align: left;
  font: inherit;
  color: inherit;
  transition: color 0.2s var(--ease);
}

button.topic-group__title--link:hover {
  color: var(--accent-hover);
}

.topic-group__enter-hint {
  font-size: 0.85rem;
  font-weight: 400;
  color: var(--muted);
  opacity: 0;
  transform: translateX(-0.15rem);
  transition: opacity 0.2s var(--ease), transform 0.2s var(--ease);
}

button.topic-group__title--link:hover .topic-group__enter-hint {
  opacity: 1;
  transform: translateX(0);
}

.topic-group__desc {
  margin: 0 0 var(--sp-4);
  max-width: 40rem;
  font-size: 0.92rem;
  line-height: 1.65;
  color: var(--ink-secondary);
}

.topic-group__count {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-variant-numeric: tabular-nums;
  color: var(--muted);
  padding: var(--sp-1) var(--sp-2);
  border-radius: var(--radius-sm);
  background: var(--border);
}

.topic-group__empty {
  font-size: 0.875rem;
  color: var(--muted);
}

.photo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(11.25rem, 1fr));
  gap: var(--sp-4);
}

.photo-card {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  background: var(--surface-raised);
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
  cursor: pointer;
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.photo-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.photo-card__img {
  aspect-ratio: 4 / 3;
  background: var(--surface-sunken);
  overflow: hidden;
  line-height: 0;
}

.photo-card__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.photo-card--portrait .photo-card__img {
  aspect-ratio: 3 / 4;
}

.photo-card--portrait .photo-card__img img,
.photo-card--square .photo-card__img img {
  object-fit: contain;
}

.photo-card--square .photo-card__img {
  aspect-ratio: 1;
}

.photo-card__body {
  padding: var(--sp-4);
}

.photo-card__title {
  margin: 0 0 var(--sp-1);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  color: var(--fg);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.photo-card__meta {
  margin: 0;
  font-size: 0.8rem;
  color: var(--muted);
}

/* ---- Upload page — OpenDesign Tech/utility ---- */

.upload-main {
  max-width: 60rem;
  margin: 0 auto;
  width: 100%;
  padding: var(--sp-6);
}

.upload-panel {
  background: var(--surface-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--sp-8);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.upload-panel__title {
  margin: 0 0 var(--sp-4);
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 600;
  text-align: center;
  color: var(--fg);
}

.upload-section-title {
  margin: var(--sp-6) 0 var(--sp-4);
  padding-bottom: var(--sp-2);
  border-bottom: 1px solid var(--border);
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--fg);
}

.upload-drop {
  position: relative;
  border: 2px dashed var(--border);
  border-radius: var(--radius-md);
  padding: var(--sp-8) var(--sp-4);
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s var(--ease), background-color 0.2s var(--ease);
}

.upload-drop.is-drag-over,
.upload-drop:hover {
  border-color: var(--accent);
  background: var(--accent-muted);
}

.upload-drop input[type="file"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

.upload-drop__hint {
  margin: 0;
  font-size: 0.875rem;
  color: var(--muted);
}

.upload-previews {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(6.25rem, 1fr));
  gap: var(--sp-4);
  min-height: 6.25rem;
}

.upload-previews__empty {
  margin: 0;
  grid-column: 1 / -1;
  text-align: center;
  color: var(--muted);
  font-size: 0.875rem;
  padding: var(--sp-4) 0;
}

.upload-preview {
  position: relative;
  width: 100%;
  aspect-ratio: 1;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--surface-sunken);
}

.upload-preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.upload-preview__remove {
  position: absolute;
  top: var(--sp-1);
  right: var(--sp-1);
  width: 1.25rem;
  height: 1.25rem;
  border: none;
  border-radius: 50%;
  background: var(--fg);
  color: var(--surface-raised);
  cursor: pointer;
  font-size: 0.75rem;
  line-height: 1;
}

.topic-picker__label {
  display: block;
  margin-bottom: var(--sp-2);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--fg);
}

.topic-picker__input-wrap {
  position: relative;
}

.topic-picker__input-wrap input {
  width: 100%;
  padding: var(--sp-2) var(--sp-4);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  background: var(--surface-raised);
  color: var(--fg);
  box-sizing: border-box;
}

.topic-picker__input-wrap input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-muted);
}

.topic-suggestions {
  position: absolute;
  z-index: 5;
  top: 100%;
  left: 0;
  right: 0;
  max-height: 12rem;
  overflow-y: auto;
  background: var(--surface-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.topic-suggestion {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--sp-2) var(--sp-4);
  cursor: pointer;
  border-bottom: 1px solid var(--border);
  font-size: 0.875rem;
}

.topic-suggestion:last-child {
  border-bottom: none;
}

.topic-suggestion:hover,
.topic-suggestion.is-selected {
  background: var(--accent-muted);
}

.topic-suggestion.is-selected {
  background: var(--accent);
  color: var(--surface-raised);
}

.topic-suggestion__check {
  width: 1rem;
  height: 1rem;
  border: 1px solid var(--muted);
  border-radius: 2px;
}

.topic-suggestion.is-selected .topic-suggestion__check {
  background: var(--surface-raised);
  border-color: var(--surface-raised);
}

.topic-suggestions__empty {
  padding: var(--sp-2) var(--sp-4);
  color: var(--muted);
  font-size: 0.875rem;
}

.topic-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
  min-height: 2rem;
  margin-top: var(--sp-2);
  padding: var(--sp-2);
  border: 1px dashed var(--border);
  border-radius: var(--radius-sm);
}

.topic-tags__empty {
  font-size: 0.875rem;
  color: var(--muted);
}

.topic-tag {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  padding: var(--sp-1) var(--sp-2);
  border: 1px solid var(--accent);
  border-radius: var(--radius-sm);
  background: var(--accent-muted);
  color: var(--fg);
  font-size: 0.875rem;
}

.topic-tag__remove {
  border: none;
  background: none;
  cursor: pointer;
  color: var(--fg);
  padding: 0;
  line-height: 1;
  font-weight: 600;
}

.topic-tag__remove:hover {
  color: var(--error);
}

.topic-picker__new-toggle {
  margin-top: var(--sp-2);
  border: none;
  background: none;
  color: var(--accent);
  cursor: pointer;
  font-size: 1rem;
  padding: 0;
}

.topic-picker__new-toggle:hover {
  text-decoration: underline;
}

.topic-new-form {
  margin-top: var(--sp-4);
  padding: var(--sp-4);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--bg);
}

.topic-new-form label {
  display: block;
  margin-top: var(--sp-2);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--fg);
}

.topic-new-form input,
.topic-new-form textarea {
  width: 100%;
  margin-top: var(--sp-1);
  padding: var(--sp-2) var(--sp-4);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface-raised);
  color: var(--fg);
  box-sizing: border-box;
}

.topic-new-form input:focus,
.topic-new-form textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-muted);
}

.topic-new-form__validation {
  margin: var(--sp-1) 0 0;
  font-size: 0.875rem;
  color: var(--error);
}

.topic-new-form__actions {
  display: flex;
  justify-content: flex-end;
  gap: var(--sp-2);
  margin-top: var(--sp-4);
}

.topic-new-form__actions button {
  padding: var(--sp-2) var(--sp-4);
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-weight: 600;
  font-size: 0.875rem;
}

.topic-new-form__actions button[data-cancel-new-topic] {
  background: var(--muted);
  color: var(--surface-raised);
}

.topic-new-form__create {
  background: var(--accent) !important;
  color: var(--surface-raised) !important;
}

.upload-submit {
  display: block;
  width: 100%;
  margin-top: var(--sp-8);
  padding: var(--sp-4);
  border: none;
  border-radius: var(--radius-sm);
  background: var(--accent);
  color: var(--surface-raised);
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.2s var(--ease);
}

.upload-submit:hover:not(:disabled) {
  background: var(--accent-hover);
}

.upload-submit:disabled {
  background: var(--muted);
  cursor: not-allowed;
}

.upload-progress {
  margin-top: var(--sp-4);
  text-align: center;
}

.upload-progress__bar {
  height: var(--sp-2);
  background: var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.upload-progress__fill {
  height: 100%;
  width: 0;
  background: var(--accent);
  border-radius: var(--radius-sm);
  transition: width 0.3s var(--ease);
}

.upload-progress__label,
.upload-progress__text {
  margin: var(--sp-2) 0 0;
  font-size: 0.875rem;
  color: var(--muted);
}

.upload-msg {
  margin-top: var(--sp-4);
  font-size: 0.875rem;
}

.upload-msg--ok {
  color: var(--success);
}

.upload-msg--error {
  color: var(--error);
}

/* ---- Detail topics editor ---- */

.detail-topics__status {
  margin: 0;
  font-size: 0.75rem;
  color: var(--ink-muted);
}

.topic-chip-editor__list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.topic-chip {
  padding: 0.3rem 0.65rem;
  border: 1px solid var(--line);
  background: var(--surface-raised);
  color: var(--ink-muted);
  cursor: pointer;
  font-size: 0.78rem;
  max-width: 10rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.topic-chip.is-active {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}

.topic-chip-editor__hint,
.detail-topics__status {
  margin: 0.5rem 0 0;
  font-size: 0.75rem;
  color: var(--ink-muted);
}

.detail-topics__status--ok {
  color: var(--ink-soft);
}

.detail-topics__status--error {
  color: #8b4513;
}

@media (max-width: 768px) {
  .browse-main,
  .upload-main {
    padding: var(--sp-4);
  }

  .upload-panel {
    padding: var(--sp-6);
  }

  .photo-grid {
    grid-template-columns: repeat(auto-fill, minmax(8.75rem, 1fr));
    gap: var(--sp-2);
  }
}

@media (max-width: 480px) {
  .browse-main,
  .upload-main {
    padding: var(--sp-2);
  }

  .upload-panel {
    padding: var(--sp-4);
    border-radius: 0;
    border-left: none;
    border-right: none;
    box-shadow: none;
  }

  .topic-nav {
    padding: var(--sp-2);
  }

  .topic-nav__btn,
  .topic-nav__add {
    padding: var(--sp-1) var(--sp-2);
    font-size: 0.9rem;
  }

  .photo-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--sp-1);
  }

  .photo-card__body {
    padding: var(--sp-2);
  }

  .photo-card__title {
    font-size: 0.9rem;
  }
}